Home / 112,632.88-155,292.24-72,275.44

Finding the Fourth Proportional to 112,632.88, 155,292.24 and 72,275.44

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Solution

The fourth proportional to 112,632.88, 155,292.24 and 72,275.44 is: 99,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,632.88 : 155,292.24 = 72,275.44 : x
  2. Step 2: Convert to fraction form
    112,632.88/155,292.24 = 72,275.44/x
  3. Step 3: Cross multiply
    112,632.88x = 155,292.24 × 72,275.44
  4. Step 4: Simplify right side
    112,632.88x = 11,223,814,974.59
  5. Step 5: Solve for x
    x = 11,223,814,974.59/112,632.88
  6. Step 6: Final answer
    x = 99,649.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.